Cabletron Systems 6A000 - Manual (Page 55)

SmartCell 6A000 User Guide 4-13
Switch Administration PVC Connections
1. Use add trafficdescriptor to create two new traffic descriptors, one for the forward direction,
the other for the backward direction. For this example, for the forward traffic descriptor, we select
UBR and accept the defaults.
SmartCell ZX # add trafficdescriptor
TrafficType(UBR) :
TrafficDescriptorType(11) :
PCRCLP01(100) :
PCRCLP0(0) :
SCRCLP01(0) :
SCRCLP0(0) :
MBSCLP01(0) :
MBSCLP0(0) :
QOSCLASS(0) :
AalType(5) :
md1 #
However, on a point-to-multipoint connection there should be no traffic in the backward direction, so we define the
backward traffic descriptor with its Cell Loss Priorities set to zero (0)
md1 #add trafficdescriptor
TrafficType(UBR) :
TrafficDescriptorType(11) :
PCRCLP01(100) :0
PCRCLP0(0) :
SCRCLP01(0) :
SCRCLP0(0) :
MBSCLP01(0) :
MBSCLP0(0) :
QOSCLASS(0) :
AalType(5) :
SmartCell ZX #
2. Use show trafficdescriptor to obtain the new traffic descriptors’ index numbers.
SmartCell ZX # show trafficdescriptor
==================================================================================
TD# Traff Desc QoS Peak Cell Rate Sust Cell Rate Max Burst Size Aal
Type Type (Kb/s) (Kb/s) (Kb/s) Type
CLP_0 CLP_0+1 CLP_0 CLP_0+1 CLP_0 CLP_0+1
==================================================================================
2 CBR 2 1 0 100 0 0 0 0 5
6 UBR 11 0 0 100 0 0 0 0 5
7 UBR 11 0 0 0 0 0 0 0 5
176 NRTVBR 2 1 0 1585 0 0 0 0 5
SmartCell ZX #
In the example above, traffic descriptor six (6) will be used in the forward direction, and traffic descriptor seven (7)
will be used in the backward direction.
3. Use add pvc to successively create point-to-multipoint PVCs for ports B2, B3, and C1.
SmartCell ZX # add pvc
ConnType(PTP) : pmp
LowPortID() : a1
LowVPI() : 0
LowVCI() : 101
HighPortID() : b2
HighVPI() : 0
HighVCI() : 101
FwdTrafficDescriptorIndex() : 6
BkwTrafficDescriptorIndex() : 7
SmartCell ZX #
4. Perform step 3 for ports B3 and C1.
5. Connect the workstations to their respective ports.